IM 934-2 Applied PDAA/PDHA / Page 20 of 44
Controls (Non-programmable)
Standard Digital Touchpad Control
User Interface
The user will by default control the Electronic
Controller via the touchpad. The user can select with a
jumper for the unit to receive commands from a Remote
Thermostat.
Keys and Indicators Labels
ON/OFF, FAN SPEED, MODE
7 Push Buttons
FAN MODE, SLEEP
Temp buttons:
for
Temp UP and
for Temp DOWN
9 LED Indicators
SLEEP, COOL, COOL/DRY, FAN,
HEAT, HIGH, LOW, CYCLE, CONT.
LED 2 Digit Displays No Label
9- LED
Indicators
Figure 29. Standard Digital Touchpad Control
Figure 30. Standard Digital Control Indicators
LED
2-Digit Display
7- Push Buttons
Application
The PTAC Digital Control is used to control
a PTAC Unit that includes both an integral air
conditioner and a source of heat.
The Digital Control is operated with a Touchpad.
Inputs and Outputs
• Indoor coil sensor, (ICS)
• Outdoor coil sensor, (OCS)
• Indoor air sensor, (IAS)
• Outdoor air sensor, (OAS)
• Remote T’stat, T’STAT (RCWYBG)
• Power supply: (24VAC)
• Line voltage input, (L1, L2)
• Indoor fan standby voltage, (L1STB L2STB)
• Control selection: (LUI, T’STAT
• Model selection: (AC/E, HP, HP/E)
• Time delay bypass, (TEST)
• Indoor off fan cycle: (FAN, OFF CYCLE–10, 20,
30, 1 HR)
Outputs
• Compressor output, COM
• Indoor fan, BLOWER LO, HI
• Outdoor fan, OUTDOOR FAN
• Electric heater, ELE
• Reversing valve, REV VALVE
Display Function Legend
Tr = Room Temperature
hI = High Room Temperature
Lo = Low Room Temperature
LA = Low Ambient Lockout
rT = Remote Thermostat Control
tP = Touchpad Control
t = Time
Ts = Temperature Setpoint
Rf = Room Freeze Condition
CF = Coil Freeze Protection
F = Fahrenheit
C = Celsius
LC = Control Lockout Mode
Remote Thermostat Control
The Remote Thermostat can be any thermostat
that can interface with an electronic thermostat via
RCWYBG terminals. The Control Selection jumper
must be in T’STAT position. During a call the remote
thermostat will pass R back to the controller on a
respective terminal. The push buttons on the touchpad
become inactive in the remote thermostat mode.
However, the control pad LED display will indicate
the mode of operation, and the room temperature.
